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广东20#大口径无缝钢管切割零售720*18热扩无缝管

38crsi,9crsi,27simn,30crmnsi,35crmnsi,20#,45#,a105,q235b,cr12,cr12mov,9cr18mo,9Cr18,1cr13,2cr13,3cr13,4cr13,304,316l,431,2205,2507,630,310s,20cr,40cr,15crmo,20crmo,30crmo,35crmo,42crmo,35crmov,20crmntih,30crmntih,16mncr5h,20mncr5h,25cr2mova,12cr1mov,20crnimoa ,8620H,20cr2ni4a,40crnimoa,30crnimo8,sae4340,20crmnmo,40crmnmo,50mn,65mn,60si2mn,38CrMoAL,gcr15,dc53,h13,crwmn,t10a,17crnimo6,18crnimo7-6,34crnimo6,q345b,q355b,19crni5h


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